What are these for? You often see them stood next to distribution centres and the like, about the height of the building and maybe 20-30ft in diameter.
http://www.wikimapia.org/#lat=53.5710398&lon=-1.2166876&z=18&l=0&m=h&v=2 (guess what company this place is for)
http://www.wikimapia.org/#lat=53.5721786&lon=-1.2090191&z=19&l=0&m=h&v=2
http://www.wikimapia.org/#lat=53.6006278&lon=-1.2725714&z=20&l=0&m=h&v=2
couple of examples
http://www.wikimapia.org/#lat=53.5710398&lon=-1.2166876&z=18&l=0&m=h&v=2 (guess what company this place is for)
http://www.wikimapia.org/#lat=53.5721786&lon=-1.2090191&z=19&l=0&m=h&v=2
http://www.wikimapia.org/#lat=53.6006278&lon=-1.2725714&z=20&l=0&m=h&v=2
couple of examples